Maija Hollmen
PhD, Doc.; Principal Investigator, Academy Research Fellow
maijal@utu.fi +358 29 450 4389 Tykistökatu 6 Turku ORCID identifier: https://orcid.org/0000-0002-3250-7653 |
Tumor Immunology; Immunotherapy; Macrophages; Breast Cancer; Antibodies
I got interested in the immunological aspect of cancer during my three-year postdoctoral training at ETH Zurich with professor Michael Detmar during the years 2011-2014. Before this I had already built extensive knowledge in cancer biology, epidermal growth factor receptor signaling and immunotherapy during my PhD studies with professor Klaus Elenius. These two periods have educated me to do trans-disciplinary research combining different methods and ideas together with good outcome. I am at the state of leading a small tumor immunology research group and building collaborations both nationally and internationally. The aim of my research is to always produce clinically relevant data that can be translated directly from bench to bedside. Therefore, a vital part of my research has been done in collaboration with clinicians and pharma companies.
Development of strategies targeting immunosuppressive cells, molecules and pathways with less toxicity and with more universal role in tumor progression is an unmet clinical need. Possibilities to control the presence of suppressive cells within tumors are key factors in opening new avenues to fight against cancer growth. This is highly important since efforts in re-activating immune responses against tumors solely by blocking T cell inhibitory molecules have not shown promise as a single therapy for the vast majority of patients.
Mechanisms regulating macrophage phenotype in the tumor microenvironment has emerged as a highly potential field in drug development. Moreover, definitive biomarkers indicative of immunotherapy treatment response and feasible assessment of the immunological changes of the tumor microenvironment during and after treatment are severely lacking.
Our research exploits a unique scavenger receptor Clever-1, expressed on a subpopulation of immunosuppressive macrophages, to alleviate tumor related inflammation and develop Clever-1 as a companion therapeutic, diagnostic, and prognostic biomarker to treat and identify patients under immunosuppression. This involves the use of in vivo tumor models and sophisticated immunological assays with cutting-edge technology and state-of-the-art imaging combined with fresh human cancer patient material to elucidate the function of Clever-1 in controlling macrophage mediated local and systemic immune responses. Our results potentially have a high impact in understanding the mechanism of macrophage-mediated immunosuppression in cancer and promoting anti-Clever-1 immunotherapy into clinical trials where it may have benefits in comparison with currently available immune activating drugs.
Lecturer in Molecular Medicine and Basic Immunology; Normal and Pathological Angiogenesis, Myeloid Leukocytes and Pattern Recognition
- Increased levels of VEGF-C and macrophage infiltration in lipedema patients without changes in lymphatic vascular morphology (2020)
- Scientific Reports
(A1 Refereed original research article in a scientific journal) - Interferon beta-1a for COVID-19: critical importance of the administration route (2020)
- Critical Care
(B1 Non-refereed article in a scientific journal) - Metastable Atrial State Underlies the Primary Genetic Substrate for MYL4 Mutation-Associated Atrial Fibrillation (2020)
- Circulation
(A1 Refereed original research article in a scientific journal) - New tools to prevent cancer growth and spread: a 'Clever' approach (2020)
- British Journal of Cancer
(A2 Refereed review article in a scientific journal ) - Clever-1 contributes to lymphocyte entry into the spleen via the red pulp (2019)
- Science Immunology
(A1 Refereed original research article in a scientific journal) - Editorial: Targeting Myeloid Cells to Fight Cancer (2019)
- Frontiers in Immunology
(B1 Non-refereed article in a scientific journal) - Immunotherapeutic Blockade of Macrophage Clever-1 Reactivates the CD8(+) T-cell Response against Immunosuppressive Tumors (2019)
- Clinical Cancer Research
(A1 Refereed original research article in a scientific journal) - Serum cytokine levels differ according to major cardiovascular risk factors in patients with lower limb atherosclerosis (2019)
- Cytokine
(A1 Refereed original research article in a scientific journal) - Single-Cell Survey of Human Lymphatics Unveils Marked Endothelial Cell Heterogeneity and Mechanisms of Homing for Neutrophils (2019)
- Immunity
(A1 Refereed original research article in a scientific journal) - Enterobacter cloacae administration induces hepatic damage and subcutaneous fat accumulation in high-fat diet fed mice. (2018)
- PLoS ONE
(A1 Refereed original research article in a scientific journal) - Melanocortin 1 Receptor Deficiency Promotes Atherosclerosis in Apolipoprotein E-/- Mice (2018)
- Arteriosclerosis, Thrombosis, and Vascular Biology
(A1 Refereed original research article in a scientific journal) - Preoperative predictors for systemic inflammatory response in open-heart surgery (2018)
- European Heart Journal
(Other publication) - Six-week endurance exercise alters gut metagenome that is not reflected in systemic metabolism in over-weight women (2018)
- Frontiers in Microbiology
(A1 Refereed original research article in a scientific journal) - New use of an old drug: inhibition of breast cancer stem cells by benztropine mesylate (2017)
- Oncotarget
(A1 Refereed original research article in a scientific journal) - Regulation of CD73 in the development of lower limb atherosclerosis (2017)
- Purinergic Signalling
(A1 Refereed original research article in a scientific journal) - Compared to Intermittant Claudication Critical Limb Ischemia Is Associated with Elevated Levels of Cytokines (2016)
- PLoS ONE
(A1 Refereed original research article in a scientific journal) - Lymphatic endothelial cells attenuate inflammation via suppression of dendritic cell maturation (2016)
- Oncotarget
(A1 Refereed original research article in a scientific journal) - Soluble CD73 in Critically Ill Septic Patients Data from the Prospective FINNAKI Study (2016)
- PLoS ONE
(A1 Refereed original research article in a scientific journal) - Transcriptional profiling of macrophage and tumor cell interactions in vitro (2016)
- Genomics Data
(A1 Refereed original research article in a scientific journal) - Transgenic overexpression of VEGF-C induces weight gain and insulin resistance in mice (2016)
- Scientific Reports
(A1 Refereed original research article in a scientific journal)